Appendix I - Hydrazine Fuel Storage and Servicing Facility Specification 2144.pdf

This document is a Performance Work Statement (PWS) section for the Hydrazine Fuel Storage and Servicing Facility at Nellis Air Force Base, specifying technical requirements for installation, testing, and commissioning of a fire protection and water distribution system.

The PWS establishes comprehensive requirements for piping installation, electrical work, and system testing. Key technical specifications include underground and aboveground piping installation per NFPA standards, with joints anchored using pipe clamps and steel rods. Piping more than 5 feet outside building walls must meet water utility distribution requirements. The electrical work must comply with interior distribution systems standards, fire detection and alarm systems, and addressable alarm circuits using #14 AWG solid copper wire in metallic tubing. Preliminary tests must be submitted no later than 14 days prior to testing, including hydrostatic pressure testing of underground piping per NFPA 24 with allowable leakage limits of 2 quarts per hour per 100 gaskets or joints regardless of pipe diameter. Aboveground piping requires hydrostatic testing at 200 psi or 50 psi above maximum operating pressure, maintained for 2 hours with no visible leakage. The contractor must conduct backflow prevention assembly forward flow tests at system demand, testing of alarm devices, main drain flow tests, and final acceptance tests demonstrating complete system operation including control valve operation and waterflow alarm switch verification. Documentation requirements include as-built shop drawings on reproducible mylar within 14 days of final tests, material and test certificates signed by the Fire Protection Specialist, and operating and maintenance manuals with step-by-step procedures for startup, operation, shutdown, and routine maintenance. Onsite training must be provided to designated personnel for 8 hours of normal working time after system completion, with service organization contact information and 4-hour emergency response capability required. The document further specifies plumbing system tests per IAPMO UPC standards, including drainage and vent systems, building sewer tests, and water supply systems testing with specific backflow prevention assembly gauge requirements and annual accuracy testing protocols. System flushing with hot potable water must produce velocity capable of entraining and removing debris, with all faucets and drinking water fountains flushed to 0.25 gallons per 24 hours minimum over a 14-day period. Disinfection procedures require filling piping systems with chlorine solution containing minimum 50 parts per million chlorine, holding for 24 hours, then flushing until residual chlorine reaches 0.2 to 0.5 parts per million, with bacteriological sampling and certified laboratory analysis required before system placement into service.